"Finding the Least Common Multiple" The Meaning of Fractions PPT

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"Finding the Least Common Multiple" The Meaning of Fractions PPT

Part One: Review Import

We already know about multiples. Can anyone give some examples of multiples of 3?

3, 6, 9, 12

What about multiples of 2?

2, 4, 6, 8, 10,

What is the smallest multiple of 3 and 2?

are themselves.

Finding the Least Common Multiple PPT, Part 2: Exploring New Knowledge

Find multiples of 4 and 6

Find multiples of 4 and 6. (Use "○" to mark multiples of 4, and "△" to mark multiples of 6)

12, 24, 36, 48, they are multiples.

It is both a multiple of 4 and a multiple of 6, so what can we call it a combination of 4 and 6?

What is the smallest of these common multiples? What name can be given to it?

12. Least common multiple.

Is there a greatest common multiple? Why?

No, because their least common multiple multiplied by any rational number will be their common multiple.

Summary: The common multiples of two numbers are called the common multiples of the two numbers. The smallest one is called the least common multiple. The number of common multiples is infinite.

Finding the Least Common Multiple PPT, Part 3: Classroom Exercises

1. In the table below, use “○” to mark multiples of 3 and “△” to mark multiples of 5.

Which numbers are marked with both "○" and "△"? What are the characteristics of these numbers?

Multiples of 3: 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33, 36, 39, 42, 46, 49.

Multiples of 5: 5, 10, 15, 20, 25, 30, 35, 40, 45, 50.

15,30 are common multiples of 3 and 5.

Finding the Least Common Multiple PPT, Part 4: Class Summary

What did you gain from studying this class?

1. Can use enumeration method and other methods to find the common multiple and least common multiple of two numbers.

2. Understand the meaning of common multiples and least common multiple.

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For more information about the PPT courseware "The Meaning of Fractions: Finding the Least Common Multiple", please click on the PPT "The Meaning of Fractions: Finding the Least Common Multiple" PPT tag.

"Finding the Least Common Multiple" PPT teaching courseware on the meaning of fractions:

"Finding the Least Common Multiple" The Meaning of Fractions PPT Teaching Courseware Part One: Review of Old Knowledge Who can give some examples of multiples of 3? How many multiples of 2? 36912151821 24681012141618, 20 Situation introduction Afanti’s story Once upon a time there was a long-term worker...

"Finding the Least Common Multiple" PPT download of the meaning of fractions:

"Finding the Least Common Multiple" The Meaning of Fractions PPT Download Part One: Learning Objectives 1. Be able to use enumeration method and other methods to find the common multiple and the least common multiple of two numbers. 2. Understand the meaning of common multiples and least common multiples. The key points will be found using methods such as enumeration..

"Finding the Least Common Multiple" PPT courseware on the meaning of fractions:

"Finding the Least Common Multiple" The Meaning of Fractions PPT Courseware The common multiples of 4 and 6 are 12243648. The least common multiple of 4 and 6 is 12. 1. In the table below, use ○ to mark multiples of 3 and △ to mark multiples of 5. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 1..

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Update Time: 2024-09-11

This template belongs to Mathematics courseware Beijing Normal University Edition Fifth Grade Mathematics Volume 1 industry PPT template

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